Quote:
Originally Posted by thecensor
is the class speed important?
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32GB microsd cards - xda-developers
You'll want to read through this thread. Class speed is important, but in your specific situation, you want to run Android off of the SD card. Thus, while class speed as a measure of performance is important when thinking about copying large files, random read-write access is more important to you because the OS is going to be doing a bunch of random read-writes as it operates off of the SD card.
A high class rating does not ensure a high level of performance from a random read-write perspective.
I'll complicate the matter even further by bringing in the PC and RAID-0 disk analogy. When RAID-0 first appeared on the scene for desktops PCs, everyone looked at the Sustained Transfer Rate performance of RAID-0 and immediately presumed that it would improve the performance of their PC. What many figured out later is that Sustained Transfer Rate performance was better, but at the cost of random read-write access.
The two measures are NOT mutually exclusive. You can have a storage medium that does both, but in your case you want to concentrate on MicroSDHC cards which perform higher in the random read-write tests.
Best regards,
-boggsie